and house speaker boehner continue to stake out their ground in the debate over the looming fiscal cliff. both made radio addresses today. the president said any compromise must include higher taxes for families making more than $250,000 a year. the speaker called instead for closing special interest loopholes. campaign 2012 was the most expensive ever. overall spending topped the $6 billion mark, driven by super pacs. as michelle miller now tells us, many low-profile candidates benefitted from super pac money, cash that in some cases came from a single person. >> my job is to make sure they do represent your best interests. >> reporter: carrie bentiviolio won his election this year as a freshman congressman from michigan. >> i'm never, ever going to raise taxes unless there's a war. >> reporter: this former school teacher and political newcomer might not have gotten this far without a super pac,. liberty for all spent $800,000 to help bentiviolio win his republican primary. >> god bless them because it was wonderful. >> reporter: the backing came from john ramsey, a 22-year-old college